<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
        *{
            margin: 20px 0 20px 100px;
        }
        p{
            color: #185;
            font-size: 20px;
            font-weight: bolder;
        }
        .b1 img{
           
            border-radius: 50%;
        }
        .b2{
            color: white;
            background-color: blue;
            width: 80px;
            height: 40px;
            border-radius: 10px;
            line-height: 40px;
            text-align: center;
        }
        .b3{
            color: white;
            background-color: blue;
            width: 80px;
            height: 40px;
            border-top-right-radius: 10px;
            border-bottom-right-radius: 10px;
            line-height: 40px;
            text-align: center;

        }
        .b4{
            width: 200px;
            height: 200px;
            /*padding: 20px;*/
            border: 15px solid red;
            border-image: url("img/border.png") 20% 15 round;
        }
        .b5{
            width: 200px;
            height: 100px;
            color: white;
            background-color: green;
            box-shadow: 15px 25px 6px 8px grey;
        }
    </style>
</head>
<body>
    <p>圆形</p>
    <div class="b1">
        <img src="img/2.jpg" alt="猴子">
    </div>
    <p>圆角</p>
    <div class="b2">
        圆角
    </div>
    <p>右上角，右下角圆角&&左上角，左下角直角</p>
    <div class="b3">
        圆角
    </div>
    <p>边框背景</p>
    <div class="b4">

    </div>
    <p>盒子阴影</p>
    <div class="b5">
        盒子阴影
    </div>
</body>
</html>